Basic essential super teeny tiny hoop cartilage. Suitable for cartilage and multiple piercings. Material 925 Sterling Silver. Nickel free. Suitable for sensitive skin. Quantity & Measurement A pair of endless hoop earrings Outer diameter: 9mm Inner diameter: 7mm Thickness: 1.2mm 25 gauge / 0.55 mm Silver : Rhodium on Sterling Silver Gold : 18 Karat gold over Sterling Silver Rose Gold : 18 Karat rose gold over Sterling Silver *Earrings for layering purposes only.